Digital dc volt/amp meter with shunt resisters. one shunt is for a 20amp range at 75mv, one shunt resistor for a 30amp range at 75mv,two shunt resistors for a 50amp range at 75mv.I bought these and then never got around to it.the meter is still sealed in bag and the shunts are used.The details and hookup drawings is included.Continental USA ONLY!!